Finding the Third Proportional to 96,648 and 144,390

Step by Step Solution

1. Step 1: Write the proportion equation
   96,648 : 144,390 = 144,390 : x
2. Step 2: Convert to fraction form
   96,648/144,390 = 144,390/x
3. Step 3: Cross multiply
   96,648x = 144,390 × 144,390
4. Step 4: Simplify right side
   96,648x = 20,848,472,100
5. Step 5: Solve for x
   x = 20,848,472,100/96,648
6. Step 6: Final answer
   x = 215,715.50